CN208759466U - A kind of piston pin backing-out punch - Google Patents
A kind of piston pin backing-out punch Download PDFInfo
- Publication number
- CN208759466U CN208759466U CN201820939138.1U CN201820939138U CN208759466U CN 208759466 U CN208759466 U CN 208759466U CN 201820939138 U CN201820939138 U CN 201820939138U CN 208759466 U CN208759466 U CN 208759466U
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- China
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- hole
- piston pin
- fixing sleeve
- piston
- boss
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Abstract
The utility model relates to a kind of piston pin backing-out punch, for by piston pin, needle bearing is separated with piston, the backing-out punch includes piston fixing sleeve, screw rod and top cover, the piston fixing sleeve includes the fixing sleeve of tubular and the guide groove that is fixed on the outside of fixing sleeve, the guide groove is equipped with slot, guide groove is equipped with tapped through hole far from fixing sleeve side, tapped through hole is connected to guide groove, through-hole there are two being set on fixing sleeve, the tapped through hole is located along the same line with two through-holes on fixing sleeve, the screw rod is equipped with the screw thread to match with tapped through hole, screw rod one end is equipped with first boss, first boss outer diameter is less than screw rod outer diameter and matches with top cover internal diameter, the top cover is annular in shape, the backing-out punch can quickly completely separate piston with connecting rod.
Description
Technical field
The utility model relates to a kind of engine gudgeon pin backing-out punch, belong to maintenance equipment technology field.
Background technique
In maintenance, the maintenance of the engines such as outboard motor is dedicated, piling machine and gasoling-engine saw, need completely that engine is living
Plug is separated with connecting rod, but is inserted into needle bearing between piston and connecting rod by piston pin and is completed to connect, and is taken when by piston pin
When out, needle roller can lose support and fall, not easy to operate if piston pin is turned back to original place again at this time, so that engine piston
Disassembly efficiency it is very low.
Utility model content
In order to solve the problems in the existing technology, provide a kind of can fast and accurately complete piston pin to the utility model
With the piston pin backing-out punch of the disassembly of needle bearing and connecting rod.
In order to achieve the above object, the utility model proposes technical solution are as follows: a kind of piston pin backing-out punch, for that will live
Plug pin, needle bearing with piston separate, including piston fixing sleeve, screw rod and top cover, the piston fixing sleeve include being cylindrical in shape
Fixing sleeve and the guide groove that is fixed on the outside of fixing sleeve, the guide groove be equipped with slot, guide groove is far from fixing sleeve side
Equipped with tapped through hole, tapped through hole is connected to guide groove, is set on fixing sleeve there are two through-hole, on the tapped through hole and fixing sleeve
Two through-holes be located along the same line, the screw rod is equipped with the screw thread that matches with tapped through hole, and screw rod one end is equipped with the
One boss, first boss outer diameter are less than screw rod outer diameter and match with top cover internal diameter, and the top cover is annular in shape.
Above-mentioned technical proposal is further designed to: further including bar, the described pull rod one end again that fills is equipped with second boss, the
Two boss diameters, which are less than, fills multiple pull rod diameter, and second boss is equipped with external screw thread, fills the multiple pull rod other end and is equipped with block, block outer diameter
Greater than multiple pull rod diameter is filled, the first boss is equipped with blind hole, matches in blind hole equipped with the external screw thread with second boss
Internal screw thread.
The pull rod diameter again that fills matches with piston pin internal diameter, fills multiple rod length and is greater than piston pin length.
The piston pin backing-out punch further includes extension bar, and the screw rod other end is equipped with reinforcing hole, reinforcing shank diameter and reinforcing
It is radially matched in hole.
The reinforcing hole is axial axially perpendicular with screw rod.
Described extension bar one end is equipped with block.
The top cover outer diameter is identical as piston pin external diameter, and the internal diameter for the two through hole being less than on fixing sleeve.
The step of dismantling piston pin using the piston pin backing-out punch of the technical program are as follows:
A, the assembly of piston rod is separated with crankshaft, takes out crankshaft, piston is extracted from cylinder sleeve；
B, piston ring and piston pin spring are removed, top land is packed into piston fixing sleeve downward；
C, top cover is put into guide groove and is aligned with piston pin, screw rod one end is screwed in into tapped through hole, first boss insertion
In top cover；
D, extension bar being inserted into reinforcing hole, rotary screw enters in piston up to the through-hole that top cover passes through fixing sleeve,
And piston pin is ejected from another through-hole；
E, connecting rod being taken out, top cover is still fixed on connecting rod center at this time, it is ensured that needle bearing is orderly to be fixed on connecting rod,
Achieve the purpose that disassembly.
Piston pin is filled to multiple step are as follows:
A, by piston guide on filling multiple pull rod, and multiple pull rod one end will be filled and be inserted into from the through hole of fixing sleeve；
B, the second boss for filling multiple pull rod is screwed in the blind hole of screw rod；
C, screw rod is reversely rotated, screw rod, which drives, fills multiple pull rod movement, and then piston pin is pulled in the piston pin hole of connecting rod,
And top cover is ejected from the through hole of fixing sleeve；
D, multiple pull rod will be filled to separate with screw rod, take out dress again pull rod, screw rod and top cover can by piston pin, needle bearing,
Connecting rod successfully combines.
The technical program has the beneficial effect that
Top cover can be stayed in the original position of piston pin when ejecting piston pin by the piston pin backing-out punch of the technical program,
It can ensure that needle bearing is orderly to be fixed on connecting rod, it is multiple convenient for filling piston pin；When piston pin dress is multiple, drawn by piston pin
Top cover can be ejected again during entering connecting rod.
The piston pin backing-out punch structure of the technical program is simple, easy to use, can be quickly completely by piston and connecting rod point
From, it both can guarantee repair quality, while can also improve dismounting speed, it also can be more accurately by piston pin and rolling during dress is multiple
Needle bearing is simultaneously in conjunction with connecting rod.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of piston fixing sleeve in the utility model；
Fig. 2 is the structural schematic diagram of screw rod in the utility model；
Fig. 3 is the structural schematic diagram that multiple pull rod is filled in the utility model；
Fig. 4 is the usage state diagram one of the utility model backing-out punch；
Fig. 5 is the usage state diagram two of the utility model backing-out punch.
In above-mentioned attached drawing:
1- piston fixing sleeve, 11- fixing sleeve, 12- guide groove, 13- tapped through hole, 14- slot, 15- through-hole, 2- screw rod,
21- first boss, 22- reinforce hole, 23- blind hole, and 3- fills multiple pull rod, 31- second boss, 32- block, 4- extension bar, 41- gear
Block, 5- top cover, 6- piston, 7- piston pin, 8- needle roller.
Specific embodiment
With reference to the accompanying drawing and the utility model is described in detail in specific embodiment.
Embodiment
A kind of piston pin backing-out punch of the present embodiment, including piston fixing sleeve 1, screw rod 2 and top cover 5.
The structure of piston fixing sleeve 1 is as shown in Figure 1, including tubular fixing sleeve 11 and being fixed on 11 outside of fixing sleeve
Guide groove 12, guide groove 12 is u-shaped, and a slot is formed among guide groove 12, and guide groove 12 is equipped with far from 11 side of fixing sleeve
Tapped through hole 13, tapped through hole 13 are connected to guide groove 12, are set on fixing sleeve 11 there are two through-hole 15, tapped through hole 13 and fixed
Two through-holes 15 are covered to be located along the same line.
As shown in Fig. 2, screw rod 2 is equipped with the screw thread to match with tapped through hole 13,2 one end of screw rod is equipped with the structure of screw rod 2
First boss 21,21 outer diameter of first boss are less than screw rod outer diameter and match with 5 internal diameter of top cover, and 2 other end of screw rod is equipped with reinforcing
Extension bar 4 can be inserted by hole 22, and to increase the rotary force of screw rod, convenient for operation, the present embodiment will reinforce 22 axial direction of hole and screw rod
2 axial perpendicular settings, facilitate operation, and 4 one end of extension bar is equipped with baffle 41, extension bar 4 can be inserted into reinforcing hole 22 until gear
Plate 41 resists reinforcing hole 22, the reinforcing effect of maximizing extension bar 4.First boss 21 is equipped with blind hole 23, and blind hole 23 is equipped with
Internal screw thread.Top cover 5 can cover in first boss 21, and screw rod 2 can screw in tapped through hole 13, as screw rod 2 constantly screws in, can push
Top cover 5 passes through through-hole, into fixing sleeve 11.
Using the present embodiment piston pin backing-out punch disassembly piston pin schematic diagram as shown in figure 4, the specific steps are that:
A, the assembly of piston rod is separated with crankshaft, takes out crankshaft, piston is extracted from cylinder sleeve；
B, piston ring and piston pin spring are removed, piston 6 is packed into piston fixing sleeve 1 top down；
C, top cover 5 annular in shape is put into the slot 14 of guide groove 12, and is aligned top cover 5 with piston pin 7, by screw rod
2 one end screw in tapped through hole 13, then first boss 21 will be inserted into top cover 5；
D, by extension bar 4 be inserted into reinforcing hole 22, rotary screw 2 until top cover 5 pass through fixing sleeve 11 a through-hole 15 into
Enter in piston 6, and piston pin 7 is ejected from another through-hole 15；
E, connecting rod is taken out, top cover 5 is still fixed in connecting rod pin hole at this time, it is ensured that the needle roller 8 of needle bearing is orderly to be consolidated
It is scheduled on connecting rod, achievees the purpose that disassembly.
The structure of multiple pull rod 3 is filled as shown in figure 3, filling multiple 3 one end of pull rod is equipped with second boss 31,31 diameter of second boss is small
In filling multiple 3 diameter of pull rod, second boss 31 is equipped with the external screw thread matched with blind hole 23, fills multiple 3 other end of pull rod and is equipped with block
32,32 outer diameter of block, which is greater than, fills multiple 31 diameter of pull rod, and the diameter for filling multiple pull rod 3 matches with 7 internal diameter of piston pin, fills multiple pull rod 3
Length is greater than 7 length of piston pin, then piston pin 7 can cover on filling multiple pull rod 3, and one end is against on block 32, and second boss 31 can
Expose from 7 other end of piston pin.5 outer diameter of top cover is identical as 7 outer diameter of piston pin, and the two through hole 15 being less than on fixing sleeve 11 is interior
Diameter, then top cover 5 can the perfect position for replacing piston pin 7, and fixing sleeve 11 can be passed in and out from two through hole 15.
Piston pin filled into multiple schematic diagram using the backing-out punch of the present embodiment as shown in figure 5, the specific steps are that:
A, by 7 sets of piston pin on filling multiple pull rod 3, and multiple 3 one end of pull rod will be filled from fixing sleeve 11 far from guide groove 12 1
It is inserted at the through-hole 15 of side；
B, the second boss 31 for filling multiple pull rod 3 is screwed in the blind hole 23 of screw rod 2；
C, screw rod 2 is reversely rotated, screw rod 2, which drives, fills the multiple movement of pull rod 3, and then piston pin 7 is pulled in connecting rod, and will top
Set 5 ejects from the through-hole 15 of 12 side of close guide groove of fixing sleeve；
D, multiple pull rod 3 will be filled to separate with screw rod 2, taking out the multiple pull rod 3 of dress, screw rod 2 and top cover 5 can be by piston pin, needle roller
Bearing, connecting rod successfully combine.
The technical solution of the utility model is not limited to the various embodiments described above, all technologies obtained using equivalent replacement mode
Scheme is all fallen in the range of the requires of the utility model protection.
Claims (7)
1. a kind of piston pin backing-out punch, for by the separation of piston pin needle bearing and piston, it is characterised in that: solid including piston
Fixed set, screw rod and top cover, the piston fixing sleeve include tubular fixing sleeve and the guide groove that is fixed on the outside of fixing sleeve, institute
Guide groove is stated equipped with slot, guide groove is equipped with tapped through hole far from fixing sleeve side, and tapped through hole is connected to guide groove, fixed
It puts on and sets there are two through-hole, the tapped through hole is located along the same line with two through-holes on fixing sleeve, sets on the screw rod
Have a screw thread to match with tapped through hole, screw rod one end is equipped with first boss, first boss outer diameter be less than screw rod outer diameter and with top
Set internal diameter matches, and the top cover is annular in shape.
2. piston pin backing-out punch according to claim 1, it is characterised in that: it further include filling multiple pull rod, it is described to fill multiple pull rod one
End is equipped with second boss, and second boss diameter is less than connection shank diameter, and second boss is equipped with external screw thread, fills the multiple pull rod other end and sets
There is block, block outer diameter, which is greater than, fills multiple pull rod diameter, and the first boss is equipped with blind hole, is equipped with and second boss in blind hole
The internal screw thread that external screw thread matches.
3. piston pin backing-out punch according to claim 2, it is characterised in that: described to fill multiple pull rod diameter and piston pin internal diameter phase
Matching fills multiple rod length and is greater than piston pin length.
4. piston pin backing-out punch according to claim 3, it is characterised in that: the piston pin backing-out punch further includes extension bar, institute
It states the screw rod other end and is equipped with reinforcing hole, radially matched in reinforcing shank diameter and reinforcing hole.
5. piston pin backing-out punch according to claim 4, it is characterised in that: the reinforcing hole is axial axial mutually vertical with screw rod
Directly.
6. piston pin backing-out punch according to claim 4, it is characterised in that: described extension bar one end is equipped with block.
7. piston pin backing-out punch according to claim 3, it is characterised in that: the top cover outer diameter is identical as piston pin external diameter,
And it is less than the internal diameter of the two through hole on fixing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820939138.1U CN208759466U (en) | 2018-06-19 | 2018-06-19 | A kind of piston pin backing-out punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820939138.1U CN208759466U (en) | 2018-06-19 | 2018-06-19 | A kind of piston pin backing-out punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208759466U true CN208759466U (en) | 2019-04-19 |
Family
ID=66127802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820939138.1U Active CN208759466U (en) | 2018-06-19 | 2018-06-19 | A kind of piston pin backing-out punch |
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| Country | Link |
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| CN (1) | CN208759466U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527245A (en) * | 2018-06-19 | 2018-09-14 | 泰州市铧颐特种装备有限公司 | A kind of piston pin backing-out punch |
| CN112476338A (en) * | 2020-11-10 | 2021-03-12 | 人本股份有限公司 | Sleeve dismounting device for rolling body of bearing retainer |
-
2018
- 2018-06-19 CN CN201820939138.1U patent/CN208759466U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527245A (en) * | 2018-06-19 | 2018-09-14 | 泰州市铧颐特种装备有限公司 | A kind of piston pin backing-out punch |
| CN112476338A (en) * | 2020-11-10 | 2021-03-12 | 人本股份有限公司 | Sleeve dismounting device for rolling body of bearing retainer |
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